And what you can't do but want to do is to be able to record the screen in high quality and to be able to play BF4 and other high end games with lots of FPS? Is this correct? Your post is kind of well, minimal, and we are trying to understand what it is you have and what it is you want.
I was addressing the sufficiency of 8gb or RAM in my last post. I don't know if 8 gb will be enough to do high quality screen recording but what I'm saying is you don't have any choice unless you move up to Titan X. All other cards top out at 8 gb of ram.
Have you googled your own question? I suspect you may not get a definitive answer here as you are asking about something that not all that many people want to do. It's kind of a niche thing. Maybe there's a forum dedicated to that world.
Exactly what are your trying to do anway? Are you recording game play?
t4smani4, if you will look at post #7 and #9 you will see why I thought you were still referring to the 8gb of video RAM on the video card. You switched gears without warning. I wish you would post more complete thoughts but it seems you are posting from an iphone so I know that is more difficult to work with than a computer. Do you have access to a something besides a smart phone at this point in time?